States of Matter
What are the three main states of matter?
Liquid, solid and gas.
What do you call it when a liquid turns into a gas?
Vaporization.
What is the boiling point of water?
100 degrees Celsius
How do the molecules of ice move?
They vibrate in place.
What are 2 different conversions of gas pressure (an equality)?
1 atm, 760 mm Hg, 760 torr, 14.69 psi, or 101 kPa
Which states of matter take the shape of their container?
Liquids and gas.
What do you call it when a liquid becomes a solid?
Freezing.
What equation do we use if there is a change in temperature?
Q= mC(delta T)
What happens to ice molecules if we add energy to them?
They start moving. The solid turns into liquid water.
What is the temperature unit for any gas law problem?
Kelvin
False. Liquids have no fixed shape, but have a fixed volume.
What do you call it when a solid turns into a gas?
sublimation
What is the freezing point of water?
0 degrees Celsius
What is the standard temperature?
273 K or 0 degrees Celsius
What is one difference between a real gas and an ideal gas?
The size of each gas particle is treated as zero.
Name two properties of a solid.
Example: has a fixed shape, some can be poured, they have a fixed volume.
What is the opposite of Vaporization?
Condensation.
What is the melting point of ice?
0 degrees Celsius
What is the standard pressure?
1 atm
According to Boyle's Law, what happens to pressure if you increase the volume?
It decreases
Which states of matter have a surface?
Solids and Liquids.
What do you call it when a solid becomes a liquid?
Melting.
What equation do we use when there is a phase change?
Q= m(delta H)
What happens to water vapor molecules when we remove energy (cool down)?
They move slower. The gas becomes liquid water.
According to Avogadro's Law, what happens if you add more gas?
It takes up more space